638 results about "Projection system" patented technology

The invention relates to the technical field of dead pixel detection and compensation of a digital light processing projection system, in particular to a DLP dead pixel calibration and compensation method and system based on a Transform attention mechanism. According to the DLP dead pixel calibration and compensation method based on the Transform attention mechanism, a multi-scale feature pyramid is constructed, global features are extracted by using a layered multi-mode Transform encoder, and a dead pixel confidence coefficient heat map is generated in combination with a dynamic sparse mask multi-head attention mechanism; dynamically selecting compensation strategies for different types of dead pixels by adopting a dead pixel type-scene demand dual-drive time-space domain compensation pipeline; ambient light and partition temperature sensor data are integrated, and the influence of optical crosstalk and thermal drift is eliminated through a brightness adaptive calibration function; and finally, carrying out closed-loop verification and iterative optimization by adopting a loss function fused with HVS perception loss. According to the method, the defective pixel detection precision is improved from 82.3% to 99.2%, the PSNR after compensation is improved from 32.6 dB to 42.5 dB, the processing delay is reduced to 7ms / frame, and the visual quality and reliability of a DLP system are improved.

The invention discloses an intelligent frameless full-projection down lamp system based on an adjustable light emitting angle, and relates to the technical field of light adjustment of projection down lamps, the intelligent frameless full-projection down lamp system comprises a lamp shell, a reflection cup cover, a lamp panel assembly and spring buckles, the reflection cup cover is slidably connected in the lamp shell, the lamp panel assembly is arranged in a through hole in the inner side of the reflection cup cover, and the spring buckles are symmetrically installed on the back side of the lamp shell; the lamp panel assembly comprises an integrated LED lamp panel and a lantern ring arranged on the back side of the integrated LED lamp panel. The deflection column and the loop bar mechanism are innovatively combined and linked with the reflection cup cover, precise control over the projection direction and flexible adjustment of the light coverage range are achieved, the system is cooperatively controlled through multiple driving assemblies, multi-dimensional optical adjustment is achieved under the constraint of a frameless structure, and the system is suitable for large-scale popularization and application. And meanwhile, the heat dissipation problem in a compact space is solved through the integrated heat dissipation fin sleeve, and a brand new solution is provided for an intelligent illumination and projection system.

The invention provides a projection device and a projection system, and relates to the technical field of projection, the projection device comprises a mounting seat and light-emitting components, the light-emitting components are mounted on the mounting seat, the light-emitting components are arranged in multiple rows, and the multiple light-emitting components in each row of light-emitting components are arranged at intervals along a first direction; the light-emitting assembly comprises a heat sink part, the heat sink part is installed on an installation base, the heat sink part has a first size in the first direction, and the heat sink part has a second size in the second direction; the first direction and the second direction intersect with each other; the first size is smaller than the second size and larger than the maximum distance between the two adjacent light-emitting assemblies in the first direction. The light-emitting part is installed on the side, away from the installation base, of the heat sink part. According to the projection equipment and the projection system provided by the invention, the shape and arrangement of the heat sink piece in the light-emitting assembly are improved, so that the miniaturization and integration degree of the laser can be improved.

The invention relates to computer aided design, and discloses a Braille printing method and system combined with 3D relief, and the method comprises the steps: carrying out the connection and fusion of a concave-convex topographic map and a multi-level depth map corresponding to each Braille dot matrix, and generating a dual-channel depth map as a printing pattern; controlling the 3D printing system to spray resin on the printing substrate based on the printing pattern read by the light field modulator, and scanning the surface of the resin by laser aiming at the braille dot matrix area to form a concave-convex structure corresponding to the concave-convex topographic map; on the adjacent side of the braille dot matrix area, a multi-wavelength DLP projection system is used for executing layered exposure, the embossment structure represented by the multi-level depth map is projected to the resin layer, and an embossment model is formed; and performing global curing on the whole printed piece based on ultraviolet light to form an integrated finished product of braille alphabets and 3D embossments. The invention further discloses a computer readable storage medium. The method aims at efficiently manufacturing seamless and high-precision multi-layer 3D embossment integrated finished products of braille alphabets and related semantics.

The invention provides a projection device and a projection system, and relates to the technical field of projection, the projection device comprises a mounting seat and light-emitting assemblies, the light-emitting assemblies are mounted on the mounting seat, the light-emitting assemblies are arranged in multiple rows, and the multiple light-emitting assemblies in each row are arranged at intervals; in the multiple light-emitting assemblies located in the same row, the light-emitting assemblies with the same light-emitting color are arranged in series. In at least one row of the plurality of rows of light-emitting components, the plurality of light-emitting components comprise a first light-emitting component and a second light-emitting component with two different light-emitting colors; the first light-emitting assemblies and the second light-emitting assemblies are located in the same row, at least one first light-emitting assembly is located between the two second light-emitting assemblies, and / or at least one second light-emitting assembly is located between the two first light-emitting assemblies. According to the projection equipment and the projection system provided by the invention, the color cast problem of the projection picture can be alleviated, and the display effect of the projection picture is ensured.

The application relates to a rapid matching positioning optical projection system and method, wherein the optical projection system comprises a projector, a camera, an information editing module, a rapid positioning module and a projection operation module; the information editing module is used for compiling virtual process information required by each working procedure according to an assembly process flow, and generating a guide information set file; the rapid positioning module is used for determining two-dimensional coordinates of a preset target ball mark reference point in a camera image after movement according to projected workpiece images before and after movement of the optical projection system, and corresponding points of the target ball mark reference point in a projector image, and determining pose information of the projected workpiece relative to a projector space coordinate system in combination with measurement data of three-dimensional coordinates of the target ball obtained by a measuring device; the projection operation module is used for generating a working procedure guide image through a three-dimensional space projection algorithm according to the guide information set file and the pose information; and the projector is used for projecting the working procedure guide image on a surface of the projected workpiece.

A motor vehicle lighting device including a housing with a first module for emitting a first beam, a second module for emitting a second beam, extending above the first, a third module for emitting a third segmented beam, extending above the second beam, and an optical projection system. The second module is arranged below the first module, the third module is arranged below the second module, and each of the modules includes a plurality of light sources, a collector for collecting and reflecting the rays emitted by the plurality of light sources into a beam, and a portion of the optical projection system that is arranged to project the beam, the portion forming an image of the collector.

A projection system comprising a display device, a hologram engine and a waveguide. The display device is arranged to display a hologram of an image and spatially modulate light in accordance with the hologram to form a holographic wavefront. The hologram engine is arranged to calculate the hologram. The hologram is arranged to angularly distribute light within the holographic wavefront in accordance with spatial position within the image such that continuous angular ranges of the holographic wavefront respectively correspond with continuous regions of the image. The waveguide comprising a pair of parallel reflective surfaces arranged to waveguide the holographic wavefront therebetween. A first surface of the pair of parallel reflective surfaces is partially reflective-transmissive so as to form an output comprising a plurality of emission zones for the holographic wavefront. The hologram engine is arranged to modify the hologram to at least partially compensate for a decrease in intensity of the emission from each successive emission zone of the waveguide caused by the partial reflection-transmissions at the first surface during waveguiding.

The invention provides laminated glass, a projection system and a vehicle. The laminated glass comprises a first glass plate, a first bonding layer, a P light reflecting layer, a second bonding layer, a second glass plate and a P light anti-reflection layer which are sequentially stacked, the laminated glass is provided with an image display area, and the P light reflecting layer and the P light anti-reflection layer cover the image display area; the projection light comprises P polarized light, the internal reflection ratio RLp of the P light reflecting layer to the P polarized light with the incident angle of 70 degrees is larger than or equal to 40%, and the reflectivity of the P light anti-reflection layer to the P polarized light with the incident angle of 70 degrees is smaller than or equal to 2%. The P light reflecting layer and the P light anti-reflection layer are arranged in the laminated glass, and the projection light containing the P polarized light is adopted, so that the brightness ratio of the main image to the auxiliary image and the transmittance of the main image to the auxiliary image of the image display area can be improved, a bright main image is formed, a clear display image is obtained, the display effect of the display image is improved, the visual field outside a vehicle is clear, and the display effect of the vehicle is improved. And the visual experience of the user is improved.

The invention belongs to the field of projection display, and discloses a rear projection screen, which comprises an imaging layer, a black light absorption layer and a zigzag microstructure layer, the black light absorption layer is composed of a first black light absorption layer and a second black light absorption layer; the first black light absorption layer comprises a plurality of first black light absorption strips, the second black light absorption layer comprises a plurality of second black light absorption strips, and the first black light absorption strips and the second black light absorption strips are orthogonally stacked and arranged; the distribution distance between every two adjacent first black light absorption strips is increased or the distribution distance between every two adjacent second black light absorption strips is increased from the transverse center line / the vertical center line of the screen to the edges of the two ends. According to the rear projection screen, more projection light rays are absorbed in the central area of the screen and less or no projection light rays are absorbed in other areas by setting the distribution distance between the first black light absorption strips and the second black light absorption strips, so that the brightness difference between the central area of the projection screen and the other areas is reduced, and the brightness of the projection screen is improved. And the rear projection screen with high brightness uniformity is obtained.

A lithographic apparatus includes a projection system and an inspection system including a radiation system, a photonic integrated circuit system, and a detector system. The projection system projects an image of the patterning device onto a substrate. The radiation system directs radiation toward a target on the substrate to generate scattered radiation from the target. The radiation system includes a radiation source for generating radiation and an optical system for focusing the radiation onto a target. A photonic integrated circuit system includes a waveguide system integrated on a board and a radiation coupler disposed at a waveguide of the waveguide system. The radiation coupler initiates at least a portion of the scattered radiation into the waveguide system. A detector system receives the scattered radiation from the waveguide system and generates a measurement signal based on the scattered radiation.

A projection system and a projection method are provided. The projection system includes a projection module, an image capture apparatus, an input apparatus, and a processor. The processor is configured to: receive an input signal from the input apparatus and generate an input command accordingly; drive the image capture apparatus to obtain a target captured image, where the target captured image includes a target image corresponding to a target object; transmit the target captured image and the input command to a cloud server; receive an analysis result generated by an artificial intelligence computing module according to the input command and the target image from the cloud server; determine display information according to the analysis result, and calculate a display position of the display information within a projection range; and drive the projection module to project an information image with display information.

A projection device (20) comprises: a distance measurement unit (22) that measures the distance to the projection device (20) from each of three or more non-aligned points located on two non-parallel reference lines, which are drawn on a projection surface (50) in the building and the positions of which are defined in drawing data of a building; an angle measurement unit (27) that measures the angle of the distance measurement unit (22) when the distance was measured; a control unit (24) that performs spatial recognition to link a position in the drawing data with a position on the projection surface (50) on the basis of the measured distance and the angle of the distance measurement unit (22) when the distance was measured; and a projection unit (23) that projects a light-emitting point at a position on the projection surface (50) corresponding to a work position defined in the drawing data. The control unit (24) shifts the position of the light-emitting point on the projection surface (50) on the basis of the result of the spatial recognition.

The invention relates to an AI voice assistant application method on projection equipment and a projection system, and the method comprises the steps: displaying a role model of a universal AI voice assistant in a home page interface of the projection system; under the condition that a user voice instruction is received, voiceprint recognition is carried out on the user voice instruction to judge whether the user voice instruction is bound with a personalized AI voice assistant or not; if the personalized AI voice assistant is bound, switching to the personalized AI voice assistant, and using the personalized AI voice assistant to interact with the user; and if not, interacting with the user by using the universal AI voice assistant. According to the method and the device, the corresponding bound personalized assistant is automatically called out by using the voiceprint of the user, the switching between the universal assistant and the personalized assistant does not need additional manual operation of the user, the use experience of the AI voice assistant on the projection equipment is improved, and the problem of how to apply the intelligent AI voice assistant on the projection equipment is solved.

Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.

The invention relates to a projection system having - a projector (22, 22'); and - a retroreflector (23), wherein the projector (22, 22') illuminates the retroreflector (23) and the retroreflector (23) reflects in a certain solid angle range.

An embodiment of a projection system having a rotatable anamorphic lens is disclosed. In the embodiment, the optical projection system includes a light source, a light integrator configured to receive light from the light source and distribute the light into a uniform pattern, a relay lens system including two or more rotatable anamorphic lenses, the anamorphic lenses tilted about an optical axis and converting the uniform pattern of light into an image having a specified aspect ratio, at least one spatial light modulator configured to receive the image and direct the spatially modulated image into an optical path, and at least one projection lens configured to receive the spatially modulated image from the optical path and project the spatially modulated image onto an image plane with the specified aspect ratio. In a DLP projection system, the relative angle between the two or more rotatable anamorphic lenses is less than 90 degrees to pre-distort the image, resulting in a more rectangular spatially modulated image with the specified aspect ratio.

The invention discloses a vehicle-mounted projection system and an automobile product, which can decompose the same to-be-projected image into two parts of 2D to-be-projected pixel information or 3D to-be-projected pixel information so as to control a DLP projection module to simultaneously project and form a visual effect of a 2D plane image corresponding to the 2D to-be-projected pixel information. And the visual effect of the 3D stereoscopic image corresponding to the 3D pixel information to be projected is realized, so that the vehicle-mounted projection technology with both the 2D projection effect and the 3D projection effect is realized. According to the technical scheme of the invention, the personnel on the vehicle can simultaneously watch the 2D projection effect and the 3D projection effect, so that different attention can be easily generated for different parts of the projection effect of the same to-be-projected image according to the difference between the 2D projection effect and the 3D projection effect, and the user experience can be improved in the aspects of improving the information transmission efficiency of the to-be-projected image and the like. The invention is widely applied to the technical field of automobiles.

A fluid handling system for a lithography system, comprising: a liquid supply configured to supply immersion fluid to fill at least a portion of the immersion space between a substrate and a projection system of a lithography system configured to project a patterned radiation beam onto the substrate; a gas supply configured to generate a gas jet containing a medium for restricting the immersion fluid within the immersion space; a discharge system configured to draw a two-phase fluid comprising a medium and immersion fluid, and having a gas phase and a liquid phase, into the discharge passage, and a recycling system configured to receive the two-phase fluid from the discharge passage and extract the medium from the two-phase fluid for further use as a product fluid.

A vehicle service system incorporating a pair of gimbal-mounted optical projection systems enables an operator to selectively orient each optical emitter of the optical projection system to illuminate a location on a vehicle surface in proximity to the system. Signals indicative of an orientation of each optical emitter about three-axes of rotation are received at a controller programmed with software instructions to utilize the received signals, together with known locations for the systems, to calculate a three-dimensional coordinate for the illuminated location within an established frame of reference. The controller is further programmed to utilize the calculated three-dimensional coordinate of the illuminated location as an origin point for determining one or more placement locations within the established frame of reference for ADAS sensor calibration or alignment targets.

Figure 8 A holographic projection system is provided that includes a hologram engine. The hologram engine is configured to divide a target image into at least a first and a second part. The hologram engine is further configured to compute a first subhologram of the first part of the target image and a second subhologram of the second part of the target image. The hologram engine is further configured to spatially interlace the first and second subholograms to form a hologram. The system further includes a wavefront redirector positioned on or substantially adjacent to the hologram or a relay copy of the hologram. The wavefront redirector comprises a plurality of first redirect regions optically coupled to the first subhologram and a plurality of second redirect regions optically coupled to the second subhologram. Each of the first redirect regions is positioned to deflect the received light at a first deflection angle with respect to the propagation axis of the system, and each of the second redirect regions is positioned to deflect the received light at a second deflection angle with respect to the propagation axis, and the wavefront redirector is positioned to expand the field of view of the system.

Systems and methods described herein provide for: obtaining sequential source data including a plurality of data elements; generating a first representation of one or more first data elements of the plurality of data elements by a first element encoder; generating a second representation of a second data element of the plurality of data elements by a second element encoder; generating a latent projection based on the second representation; generating a predicted second representation based on the first representation and the latent projection by a representation predictor model; determining a loss between the second representation and the predicted second representation; and training at least the first element encoder based on the loss.

The invention relates to a projection system. The projection system comprises a laser beam scanner (22) for generating a light beam (LBR), a projection surface (21) swept over by the light beam (LBR), and a sensor (215) arranged at the edge of the projection surface (21) for detecting the light beam (LBR) striking the location of the sensor (215). The invention further relates to a method for foreign body detection in such a projection system and a method for calibrating such a projection system.

An example distance sensor includes a light projection system for projecting a pattern of points of light onto an object. The light projection system includes a laser light source for projecting coherent light and a diffractive optical element having a plurality of layers etched to form a binary step pattern, where the plurality of layers are configured to split the coherent light into a plurality of light beams, where each light beam forms one point of the pattern, and where the plurality of layers are further configured to control a divergence angle of the light beams. The example distance sensor also includes a light receiving system for capturing an image of the pattern projected onto the object, and a processor for calculating a distance to the object based on an appearance of the pattern in the image and knowledge of a trajectory of the light points.

A vehicle-mounted HUD system and a vehicle. The vehicle-mounted HUD system comprises, successively arranged, a projection system (100), a diffusion film (200), a beam splitter module (300) and a secondary optical module (400). The secondary optical module (400) comprises, arranged opposite to each other, a reflecting element (401) and a reflecting and converging element (402), the reflecting and converging element (402) being located on a light emitting path of the beam splitter module (300). The distance between the optical center of the reflecting element (401) and the optical center of the reflecting and converging element (402) is L, and the convergence distance of the reflecting and converging element (402) is H, L > H.

The invention relates to a head-up display (1) for a motor vehicle, comprising: - a housing (10) having a window (11), - an image generation device (20) housed inside the housing, - a projection system (comprising at least one folding mirror (31) housed inside the housing and adapted to deflect a light beam (F1) emitted by the image generation device to project said images into the field of vision of a driver (100) of the motor vehicle, said folding mirror being adapted to reflect this light beam in a range of wavelengths corresponding to the visible spectrum and to be traversed by a light beam (F2) coming from outside the housing in a range of wavelengths corresponding to the infrared spectrum. According to the invention, this folding mirror is further adapted to diverge the light beam passing through it. Figure for the abstract: Fig. 1

This invention discloses a projection lens and projection system, including an aperture stop, a front group of lenses and a rear group of lenses located on either side of the aperture stop. A diffractive lens is disposed in the rear group of lenses. The diffractive lens includes a lens substrate, one side surface of which has a first diffraction structure, a first coating covering the first diffraction structure, and a second diffraction structure on the side surface of the first coating facing away from the lens substrate, with a second coating covering the second diffraction structure. By introducing a diffractive lens into the projection lens, and the diffractive lens having a double-layer diffraction surface, the system can maintain a high diffraction efficiency through the mutual matching of refractive indices, while simultaneously utilizing the negative chromatic aberration characteristics of the diffraction surface to complement the positive chromatic aberration of the lens's refractive surface. This significantly reduces chromatic aberration in the optical system and overcomes the problem of red and blue fringing in projected text. The introduction of the diffractive lens also provides more optimization freedom for the entire optical system, thereby achieving a small size and high performance for the projection lens.

The invention relates to a projection system comprising - a beam generator (140) for generating a modulated collimated light beam (LBM); - a projection surface (21); and - a mirror unit (73) for moving the modulated collimated light beam (LBM) over the projection surface (21), wherein an optic (157) is arranged between the mirror unit (73) and the projection surface (21), which focuses all light rays coming from the mirror unit (73) and incident in this angular range onto a point on the projection surface (21) for each angular range assigned to a pixel (2101) on the projection surface (21).

The invention relates to a projection system comprising - a beam generator (140) for generating a collimated modulated light beam (LBM); - a projection surface (21); - and a mirror unit (73) for reflecting the modulated light beam (LBM) and moving the reflected light beam (LBR) over the projection surface (21), wherein a gray gradient (210) is disposed on the projection surface (21).

To prevent a contact accident of a moving body.SOLUTION: The projection control device estimates a movement locus when a moving body turns according to a situation of the moving body on a road surface, and when there is an obstacle in a range of the estimated movement locus, causes a projection device installed on the moving body to project a projection image onto the obstacle in the range of the movement locus.SELECTED DRAWING: Figure 8